/* eslint-disable space-before-function-paren */
/* eslint-disable comma-dangle */
/* eslint-disable spaced-comment */
/* eslint-disable indent */
/* eslint-disable indent */
<template>
<!-- 登录 页面-->
    <div class="login_container">
        <div class="login_box">
            <!-- 头像区域 -->
            <div class="avatar_box">
                 <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登录表单区域 -->
            <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0" class="login_form">
                <!-- 用户名 -->
              <el-form-item prop="username">
                <el-input v-model="loginForm.username"  prefix-icon="iconfont icon-user"></el-input>
             </el-form-item>
             <!-- 密码 -->
              <el-form-item prop="password">
                <el-input v-model="loginForm.password" type="password"  prefix-icon="iconfont icon-3702mima"></el-input>
             </el-form-item>
             <!-- 按钮区域 -->
              <el-form-item class="btns">
                 <el-button type="primary" @click="login" >登录</el-button>
                  <el-button type="info" @click="resetLoginForm">重置</el-button>
             </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
  data () {
    return {
    // 这是登录表单的数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456'
      // eslint-disable-next-line comma-dangle
      },
      // 这是表单的验证规则
      loginFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 点击重置按钮，重置登录表单
    // eslint-disable-next-line space-before-function-paren
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields();
    },
    login() {
      // 表单预验证
      this.$refs.loginFormRef.validate(async valid => {
        if(!valid) return;//如果valid为false  不发送请求
        const {data:res}=await this.$http.post("login",this.loginForm);
        // console.log(res);
        if(res.meta.status !==200) return this.$message.error('登录失败！')
        this.$message.success('登录成功');
        // 1.将登录成功之后的token 保存到客户端的sessionStorage中
        // 1.1项目中除了登录之外的其他api接口，必须在登录之后才能访问
        // 1.2token只应在当前网站打开期间生效，所以将token保存在sessionStorage中
        console.log(res);
        window.sessionStorage.setItem('token',res.data.token);
        // 2.通过编程式导航跳转到后台主页，路由地址是/home
        this.$router.push('/home');
      });
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
 background-color: #2b4b6b;
 height: 100%;
}
.login_box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
.avatar_box {
    height: 130px;
    width: 130px;
    border:1px soliid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: #fff;

    img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
    }
}
}
.btns {
    display: flex;
    justify-content: flex-end;
}
.login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
</style>
